S.Afr.j.chem. (Online) vol.61 Durban 2008

ISchool of Material Science and Engineering, Southwest University of Science and Technology, Mianyan, Sichuan 621010, People's Republic of China IISchool of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, People's Republic of China

ABSTRACT

The treatment of calcium chloride with sodium carbonate under solvent-free conditions with a supersonic airflow and at a low heating temperature leads to the synthesis of ultra-fine calcium carbonate. The reaction not only involves mild conditions, a simple operation, and high yields but also gives a high conversion rate.